1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Olegator [25]
3 years ago
15

A calcium ion has 20 protons and 18 electrons. Each proton has a +1 charge and each electron has a -1 charge. What is the charge

of the calcium ion?
Mathematics
1 answer:
kolbaska11 [484]3 years ago
7 0

Answer:

Ca^(2+) or the charge is 2 plus or just 2

Step-by-step explanation:

Charge on the calcium ion = 20*(+1) + 18*(-1) = 20 - 18 = 2

The charge on the calcium ion is +2

You might be interested in
Find the slope of the line
Dima020 [189]

Answer:

Slope = -\frac{3}{14}

Step-by-step explanation:

We know that:

X₁ = -3

Y₁ = 5

X₂ = 11

Y₂ = 2

And the formula of the slope is:

Slope = \frac{y_2 - y_1}{x_2 - x_1}

Therefore:

Slope = \frac{2-5}{11-(-3)}

<u>Slope = </u>-\frac{3}{14}<u />

Hope this helps!

4 0
3 years ago
Read 2 more answers
Find the circumference of each circle. Use 3.14 or 22/7 for pi!. Round to the nearest hundredth, if necessry
telo118 [61]
Is this Jose Galvan all you have to do is multiply 3.14by your circumference
7 0
3 years ago
.
PtichkaEL [24]

The expected value if I have to pick one package given the price I would have to pay is $0.11.

<h3>What is the expected value?</h3>

The expected value is the cost you would have to pay subtracted from the total value of one package.

Total value of one package  =[ (15 x 0.60) + (5 x 0.3) + (20 x 0.7)]/ (20 + 15 + 5) = $0.61

Expected value = $0.61 - $0.50 = $0.11

To learn more about expected value, please check: brainly.com/question/27624788

#SPJ1

5 0
2 years ago
imeter, Area, Dimensions - Real World Hacice estions Notes/Examples 1. A triangular garden has sides measuring 14 feet, 17 feet,
sdas [7]
Hihxhdjdisisjieh xhhshshduududusuusus
7 0
2 years ago
Write the equation of a line, in Point slope form that passes through (5,6) and has a slope of -3​
Mademuasel [1]

Answer:

y = -3x + 21

Step-by-step explanation:

(5,6)

y = mx + b

6 = -3 × 5 + b

solving for b

b = 6 - (-3)(5)

b = 21

Therefore,

y = -3x + 21

7 0
3 years ago
Other questions:
  • 3p+7=34;p= <br> Please help me with this
    8·1 answer
  • Solve (x + 5&lt; 4) ∩ (x - 3 &gt; -6)
    12·1 answer
  • Which expression below is an equivalent expression to: (13n^4+12n^3-3+8n^2)+(-11n^2-n^3)
    12·1 answer
  • Explain the difference between collusive and non collusive oligopoly market
    13·1 answer
  • Maximize: z=6x + 4y
    13·1 answer
  • marta is trying to decide between two jobs the first job will pay 35,340 and the second job will pay 36,120 before taxes which j
    14·2 answers
  • Please help :( The picutre is right below worth 20 pionts and will mark brainliest :)
    13·1 answer
  • The Unit Circle
    14·1 answer
  • Help please, i need this answer asap!!!
    11·1 answer
  • The question is in the picture- It's homework and it's due in a few minutes
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!